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Our state‑of‑the‑art Mercury Continuous Emission Monitoring System (CEMS) LX-4000-Hg—engineered to deliver real‑time, 24/7 monitoring of gaseous mercury (Hg⁰ and Hg²⁺) in flue gas streams. Leveraging patented cold atomic fluorescence spectroscopy combined with high‑temperature extraction and precision dilution, our system accurately tracks mercury concentrations (mg/m³) and calculates emission rates (kg/h, t/d, t/a) from boilers, furnaces, incinerators, and other stationary sources.
Real‑Time Accuracy: Continuous, in‑situ measurement ensures immediate detection of emission spikes, empowering operators to adjust combustion parameters and maintain compliance with stringent environmental regulations.
Seamless Integration: Bi‑directional data transmission interfaces effortlessly with DCS and environmental protection agency platforms via digital mining instruments, streamlining reporting and audits.
Robust Design: Housed in a modular, easy‑access analysis hut, the Mercury CEMS features automated O₂, temperature, pressure, flow, and humidity compensation to guarantee stable, drift‑free performance with minimal maintenance.
Cost‑Effective Operation: Energy‑efficient heaters, self‑cleaning filters, and redundant calibration modules reduce downtime and running costs, delivering unmatched return on investment.
Optimize your environmental compliance and process control with our Mercury CEMS. By integrating cold vapor atomic fluorescence spectroscopy (CVAF) with a high‑temperature dilution extraction front end, this system delivers industry‑leading accuracy in measuring elemental (Hg⁰) and oxidized (Hg²⁺) mercury concentrations (mg/m³) and emission rates (kg/h, t/d, t/a).
Sampling system: High‑temperature dilution extraction for representative gas conditioning
Mercury Detection: Cold Vapor Atomic Fluorescence (CVAF) for sub‑ppb precision
O₂ Analysis: Zirconia sensor with automatic oxygen compensation
Temperature Monitoring: Thermistor (or thermocouple) for rapid response
Pressure Monitoring: Solid‑state pressure transducer for stable, drift‑free readings
Flow Rate Monitoring : Micro differential‑pressure (Pitot tube) method for accurate volumetric flow
Enhance your emissions monitoring suite with our fully modular Mercury CEMS, engineered for turnkey installation and maximum uptime. Each component is optimized for precision, durability, and seamless integration:
Unlock ultra‑sensitive mercury detection with the heart of our Mercury CEMS—the Cold Vapor Atomic Fluorescence (CVAF) spectrometry module. This cutting‑edge technology delivers real‑time, sub‑parts‑per‑trillion resolution in flue gas mercury monitoring, ensuring regulatory compliance and process optimization.
UV Excitation with Mercury‑Vapor Lamp
A high‑intensity UV lamp emits photons at the 253.7 nm resonance wavelength.
Flue gas enters the optically clear sample cell , allowing mercury atoms (Hg⁰ and Hg²⁺) to absorb UV energy.
Fluorescence Emission & Photon Counting
Excited Hg atoms immediately re‑emit absorbed energy as fluorescence light in all directions.
A precision photon‑counting detector , positioned at a 90° angle, captures only the fluorescence signal—eliminating background noise and cross‑interference from SO₂, O₂, and other flue gas constituents.
Automatic Baseline Correction & Drift Compensation
Integrated algorithms perform continuous zero‑span checks using built‑in elemental and ionized mercury gas generators.
Real‑time correction routines maintain measurement stability over extended operational cycles, reducing calibration frequency and maintenance costs.
Dilution Extraction for Harsh Environments
The high‑temperature sampling probe dilutes particulate‑laden flue gas to protect optics and extend lamp life.
Controlled dilution also mitigates quenching effects, preserving the CVAF’s exceptional detection limits, even in high‑dust or high‑acid gas streams.
Data Integration & Reporting
Measurement data (mg/m³, kg/h, t/a) are transmitted seamlessly to your DCS and environmental data systems.
Customizable alarms and trend reports let you respond proactively to emission excursions, optimize combustion settings, and document compliance.
| Specification | Performance |
|---|---|
High Temperature Sampling Probes | |
| Dilution ratio | 1:50 to 1:250 (customizable) |
| Vacuum degree | >60 kPa |
| Heating temperature | 150°C |
| Probe length | Standard 1m (customizable) |
| Interface size | OD/ID: 8/6 mm; 6/4 mm optional |
| Filter material | Stainless steel/ceramic optional |
| Filtration precision | 2 μm |
| Ambient temperature | (-20 to 50)°C |
| Power supply | AC 220V, 50Hz |
| Protection class | IP54 |
| Warm-up time | 30 minutes |
| Weight | 15 kg |
| Flange standard | DN65 |
Flue Gas Mercury Analyzer | |
| Principle | cold vapor atomic fluorescence(CVAF) |
| Range | 0~5ug/m3~200ug/m3 |
| Displayed value error | Not more than +/-5% |
| Repeatable | ≤1% |
| Zero-point drift | Not to exceed+/- 1% F.S |
| Range drift | Not to exceed+/- 1% F.S |
| Operating temperature | -20°C to 50°C |
| Response time (T90) | <90 seconds |
| Relay output interface | 8 channels, output content configurable,24VDC |
| 4-20mA output interface | 4 channels, output content configurable, max. load carrying capacity <800 ohms |
| Communication interface | 1 RS232,1 RS485 |
| Power Supply/Power | 220 VAC /1000W |
Elemental Mercury (Hg⁰) Gas Generator | |
| Temperature control | 50°C |
| Temperature control accuracy | ≤0.1°C |
| Absolute temperature error | Not more than +/-0.5°C |
| Gas flow meter range | 0~20L/min |
| Gas Flow Error | Not to exceed +/- 0.5% F.S |
| Output elemental mercury concentration | 15ug/min~150ug/min (optional) |
Ionized Mercury (Hg²⁺) Gas Generator | |
| Gas flow meter range | 0~20L/min |
| Gas Flow Error | Not to exceed +/-0.5% F.S. |
| Liquid Flow Pumps Minimum Control Flow | 0.55ul/min |
| Liquid Flow Error | Not more than +/-0.35% |
| Evaporator temperature | 180°C |
| Temperature control accuracy | ≤0.1°C |
| Absolute temperature error | Not more than ±0.5°C |
| Output mercury ion concentration range | 5ug/m3~200ug/m3 |
| Digital output | RS232 |
| Measurement Name | Temp | Stresses | Flow Rates |
|---|---|---|---|
| Measuring principle | RTD (or thermocouple) | Pressure sensors | Pitot tube |
| Measurement range | 0 to 300℃,0 to 800℃ or other customized ranges | -10 to 10kPa or other customized ranges | 0~15.5m/s or 0~40m/s |
| Measurement accuracy | Not more than +/- 3°C | Not more than+/- 10% | Not more than+/- 10% |
| Input voltage | 220V AC,50Hz | 24V DC | 24V DC |
| Output current | 4 to 20 mA current. Four-wire system (telecommunications) | 4 to 20 mA current. Four-wire system (telecommunications) | 4~20mA current, 4-wire system |
| Calibration frequency | 4~20mA current, 4-wire system | ||
| Response time | 2 months | ||
| Differential pressure transmitter over pressure limit | <1s | ||
| Pitot tube material | 1.0kPa | ||
| Pitot tube insertion length | 304, 316, 316L stainless steel, glass fiber reinforced plastic | ||
| Solenoid valve power supply | 500mm~1700mm selectable | ||
| Medium temperature range | 220VAC，50Hz | ||
| Blowback zeroing | -40℃ ~500℃ | ||
| Environmental temperature | Manual Zeroing & Auto Zeroing | ||
| Storage temperature | -40℃~85℃ | ||
| Storage humidity | 0 to 50℃ | ||
| Environmental humidity | 5%Rh to 95%Rh | ||
| Analog output external load | 500Ω max | ||
| Power (output) | Maximum 35W | ||
| Electricity supply | 24VDC |
Optimize your environmental compliance and process control with our Mercury CEMS. By integrating cold vapor atomic fluorescence spectroscopy (CVAF) with a high‑temperature dilution extraction front end, this system delivers industry‑leading accuracy in measuring elemental (Hg⁰) and oxidized (Hg²⁺) mercury concentrations (mg/m³) and emission rates (kg/h, t/d, t/a).
Sampling system: High‑temperature dilution extraction for representative gas conditioning
Mercury Detection: Cold Vapor Atomic Fluorescence (CVAF) for sub‑ppb precision
O₂ Analysis: Zirconia sensor with automatic oxygen compensation
Temperature Monitoring: Thermistor (or thermocouple) for rapid response
Pressure Monitoring: Solid‑state pressure transducer for stable, drift‑free readings
Flow Rate Monitoring : Micro differential‑pressure (Pitot tube) method for accurate volumetric flow
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Enviro Solutions Technology Co., Ltd (ESE Technology) is a gas analyzer manufacturer and leading provider in ODM/OEM services for gas analysis systems used by international famous brands.
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